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Yellow-throated bulbul

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Yellow-throated bulbul
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Infraorder: Passerides
Family: Pycnonotidae
Genus: Pycnonotus
Species:
P. xantholaemus
Binomial name
Pycnonotus xantholaemus
(Jerdon, 1845)
Synonyms
  • Brachypus xantholaemus[2][3]
  • Ixos xantholaemus

The yellow-throated bulbul (Pycnonotus xantholaemus) is a species of songbird in the bulbul family of passerine birds. The species is endemic to southern peninsular India. They are found on scrub habitats on steep, rocky hills many of which are threatened by granite quarrying. It is confusable only with the white-browed bulbul with which its range overlaps but is distinctively yellow on the head and throat apart from the yellow vent. The calls of this species are very similar to that of the white-browed bulbul.

Taxonomy and systematics

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The yellow-throated bulbul was originally described by Thomas Jerdon in the genus Brachypus (a synonym for Pycnonotus), and later re-classified it in the genus Ixos.[4] It has since been re-classified to the genus Pycnonotus. The alternate name yellow-eared bulbul should not be confused with the species of that name, Pycnonotus penicillatus. The name 'yellow-throated bulbul' is also used as an alternate name for Falkenstein's greenbul.

Description

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This uncrested species of bulbul is olive grey above with a yellow throat, undertail coverts and tail tips. The head is plain while the breast and belly have a grey wash. The closest resembling species is the white-browed bulbul but this has a supercilium and lacks the yellow throat. Males and females are similar in plumage.[5]

Distribution and habitat

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In scrub habitat
In scrub habitat
Yellow-throated bulbul call from Gingee Fort

The habitat of the species is rocky, scrub-covered hills mostly in the Eastern Ghats and central peninsular India but also in some places in the Western Ghats. The distribution is highly fragmented and populations are very local, making hilly habitats a very special conservation concern. Many of these hill forests are threatened by granite quarrying, forest fires and grazing.[6] It has vanished from many sites where it was earlier known.[7]

Some well-known locations include the Nandi Hills,[8] Horsley Hills,[9] Gingee,[10] Yercaud[11] and the Biligirirangans.[12] The species is also seen in some parts of the Western Ghats including the Anamalais.[13][14][15][16][17][18][19] The northern limit is believed to be in the Nallamala range,[20] but it is suspected that the species may extend in range into the northern Eastern Ghats of Orissa.[21][22]

Behaviour and ecology

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This bird is usually shy and hidden within scrub and is usually detected by its sudden cackling outbursts of calls, which are similar to those of the white-browed bulbul. They feed on insects and the berries of various scrub plant species including Lantana camara, Flueggea leucopyrus, Toddalia asiatica, Erythroxylon monogynum, Solanum indicum, Santalum album, Ziziphus, Ficus benghalensis, Ficus nervosa, Ficus montana, Canthium dicoccum and Phyllanthus reticulata.[6]

1847 illustration

During hot afternoons and in the dry-season they visit pools of water both to drink and bathe.[23]

The breeding season is June to August. The nest is built in the fork of a small tree. Two eggs are laid which hatch in 20 days with the chicks fledging 13 days later.[6][24]

References

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  1. ^ BirdLife International (2016). "Pycnonotus xantholaemus". IUCN Red List of Threatened Species. 2016: e.T22712719A94345114. doi:10.2305/IUCN.UK.2016-3.RLTS.T22712719A94345114.en. Retrieved 13 November 2021.
  2. ^ Jerdon, TC (1844). "Second supplement to the catalogue of the birds of southern India". Madras Journal of Literature and Science. 13 (2): 116–144.
  3. ^ Sharpe, RB (1881). Catalogue of the birds in the British Museum. Volume 6 Cichlomorphae: Part 3. p. 146.
  4. ^ Jerdon, Thomas Claverhill (1 January 1863). The Birds of India: Being a Natural History of All the Birds Known to Inhabit Continental India, with Descriptions of the Species, Genera, Families, Tribes, and Orders, and a Brief Notice of Such Families as are Not Found in India, Making it a Manual of Ornithology Specially Adapted for India. Author. p. 85. Ixos xantholaemus.
  5. ^ Ali, S & S D Ripley (1996). Handbook of the birds of India and Pakistan. Vol. 6 (2nd ed.). Oxford University Press. pp. 94–95. ISBN 0-19-562063-1.
  6. ^ a b c Subramanya, S.; JN Prasad & S. Karthikeyan (2006). "Status, habitat, habits and conservation of Yellow-throated Bulbul Pycnonotus xantholaemus (Jerdon) in South India". Journal of the Bombay Natural History Society. 103 (2–3): 215–226.
  7. ^ Subramanya,S; Karthikeyan,S; Prasad,JN; Srinivasa,TS; Arun,B (1990). "A trip to Thondebhavi in search of Yellowthroated Bulbul". Newsletter for Birdwatchers. 30 (11–12): 7.
  8. ^ Subramanya,S; Karthikeyan,S; Prasad,JN (1991). "Yellowthroated Bulbul at Nandi Hill". Newsletter for Birdwatchers. 31 (3&4): 7–8.
  9. ^ Allen,P Roscoe (1908). "Notes on the Yellow-throated Bulbul Pycnonotus xantholaemus". J. Bombay Nat. Hist. Soc. 18 (4): 905–907.
  10. ^ Rao,TK (1995). "Yellowthroated Bulbul - Pycnonotus xantholaemus (Jerdon) in Gingee". Blackbuck. 11 (1): 9–11.
  11. ^ Karthikeyan,S (1995). "Notes on the occurrence of the Yellowthroated Bulbul Pycnonotus xantholaemus (Jerdon) at Shevaroys, Tamil Nadu". J. Bombay Nat. Hist. Soc. 92 (2): 266–267.
  12. ^ Karthikeyan,S; Prasad,JN; Srinivasa,TS (1995). "Yellowthroated Bulbul Pycnonotus xantholaemus (Jerdon) at Biligirirangan Hills, Karnataka". J. Bombay Nat. Hist. Soc. 92 (1): 123–124.
  13. ^ Kannan, R. (1992). "The Yellowthroated Bulbul (Pycnonotus xantholaemus) in the Anaimalai Hills". Newsletter for Birdwatchers. 32 (3–4): 19.
  14. ^ Kannan, R. (1998). "Avifauna of the Anaimalai Hills (Western Ghats) of southern India". Journal of the Bombay Natural History Society. 95 (2): 193–214.
  15. ^ Kannan, R.; D. A. James (2010). "On the Yellow-throated Bulbul in Tamil Nadu, and a plea for more self-explanatory titles" (PDF). Indian Birds. 6 (1): 25.
  16. ^ Narayanan, S. P.; Boopal, A.; Nanjan, S.; Kurian, J.; Dhanya, R.; Gomahty, N.; Dastidar, D. G.; Rajamamannan, M. A.; Venkitachalam, R.; Mukherjee, D. & Eswaran, R. (2006). "New site for the Yellow-throated Bulbul Pycnonotus xantholaemus from Tamil Nadu" (PDF). Indian Birds. 2 (6): 151–153.
  17. ^ Beisenherz, W. (2004). "Rediscovery of the Yellow-throated Bulbul Pycnonotus xantholaemus in the Anaimalai Hills, Western Ghats, South India". J. Bombay Nat. Hist. Soc. 101 (1): 160.
  18. ^ Praveen J & L Namassivayan (2006). "Sighting of Yellow-throated Bulbul Pycnonotus xantholaemus from Chinnar Wildlife Sanctuary, Kerala, Southern India" (PDF). Zoos' Print Journal. 21 (4): 2228. doi:10.11609/jott.zpj.1489.2228.
  19. ^ Davison, W (1888). "Letters". Ibis. 30 (1): 146–148. doi:10.1111/j.1474-919X.1888.tb07729.x.
  20. ^ Srinivasulu, C. (2003). "Site records of yellow-throated bulbul Pycnonotus xantholaemus (Jerdon, 1844) in the Nallamala Hills, Eastern Ghats, Andhra Pradesh, India" (PDF). Zoos' Print Journal. 18 (3): 1051–1052. doi:10.11609/jott.zpj.18.3.1051-2.
  21. ^ Subramanya S. (2004). "Does the Yellow-throated Bulbul Pycnonotus xantholaemus occur in Orissa?". Newsletter for Ornithologists. 1 (3): 39–40.
  22. ^ Sreekar R, Srinivasulu C (2010). "New site record of Yellow-throated Bulbul Pycnonotus xantholaemus from Andhra Pradesh" (PDF). Indian Birds. 5 (5): 157.
  23. ^ Karthikeyan S (1991). "On birds frequenting water puddles". Newsletter for Birdwatchers. 31 (11&12): 8–9.
  24. ^ Collar NJ; A.V. Andreev; S. Chan; M.J. Crosby; S. Subramanya; J.A. Tobias (2001). Threatened Birds of Asia (PDF). BirdLife International. pp. 1969–1973.
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